CA's Blueprint for a Safer Economy assigns each county to a tier based on case rate and test positivity rate. What's opened / closed under each tier.
Tiers, from most severe to least severe, categorizes coronavirus spread as widespread; substantial; moderate; or minimal. Counties must stay in the current tier for 3 consecutive weeks and metrics from the last 2 consecutive weeks must fall into less restrictive tier before moving into a less restrictive tier.
We show only case charts labeled with each county's population-adjusted tier cut-offs.
Related daily reports:
Code available in GitHub: https://github.com/CityOfLosAngeles/covid19-indicators
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Report updated: 1/10/21; data available through 1/9/21.
Cases chart, explained
Severity measured as proportion relative to Tier 4 (widespread) threshold.
1 = at Tier 4 threshold
2 = 2x higher than Tier 4 threshold
Severity Scale